Incrustation preventive



formed.

UNITED STATES PATENT OFFICE.

THOMAS HARRIS AND CHARLES DAY, OF XENIA, OHIO.

INCRUSTATION PREVENTIVE.

SPECIFICATION forming part of Letters Patent No. 410,516, dated September 3, 1889.

Application filed October 22, 1883- Serial No. 288,841. (No specimens.)

T0 at whom it may concern.-

Be it known that we, THOMAS HARRIS and CHARLES DAY, of the city of Xenia, in the county of Greene and State of Ohio, have invented certain new and useful Improvements in Compositions for Removing Scale from Steam-Boilers and We do hereby declare that the following is a full, clear, and exact description thereof.

This invention is a composition for use in steam-boilers to prevent the formation of scale therein and to remove such scale if The composition, when mixed with the water in or to be fed into the boiler, as hereinafter stated, will effectually break the Water or prevent its foaming or depositing sediment 011 the boiler-tubes.

The composition consists of the following ingredients, in or about the proportions stated: one gallon of coal-oil, one pint of black oil, one ounce of flour, (\vheat,) one ounce of lard. The black oil referred to is the oil produced in Test Virginia, or lubricating-oil, not a good illuminant. By coaloil is meantkerosene such asis produced in Pennsylvania, which is a good burning-oil. Theseingredientsarethoroughlycommingled, and aboutahalf-gallon of the mixture is used per week with a fifty-horse-power boiler (larger boilers in proportion) until all the scales have been removed, when the quantity may be lessened. This composition has been tested and has been found effective in cleansing and preventing scale.

The oflice of the lard, flour, and black oil is to form a gloss on the shell of the boiler and prevent further deposits clinging or sticking thereto, and also prevent fomenting of the water, while the coal-oil cuts off any scale that had previously formed. The black oil (West Virginia oil) will not out the scale alone, but requires the presence of the stronger and more penetrating petroleum or coal oil. The lard and flour assist in forming andlceeping the preservative coating on the shell.

Having described our invention,we claim The herein-described composition for removing scale from steam-boilers, consisting of one gallon of coal-oil, one pint of black oil, one ounce of wheat-flour, and one ounce of lard, as and for the purpose set forth.

In testimony that We claim the foregoing as our own we affix our signatures in presence of. two witnesses.

1 THOMAS HARRIS.

mark

his CHARLES DAY.

mark Vitnesses:

ABNER S. BUCK, (inns. S. BUcK. 

